Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Short-term Deposits (Details)

v3.6.0.2
Summary of Significant Accounting Policies - Short-term Deposits (Details)
12 Months Ended
Dec. 31, 2016
Short-term deposits  
Maturity term, minimum (in months) 3 months
Maturity term, maximum (in months) 12 months